Add 30/28 and 81/24
1st number: 1 2/28, 2nd number: 3 9/24
30/28 + 81/24 is 249/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 28 × 6 = 168,
30/28 = 30 × 6/28 × 6 = 180/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
81/24 = 81 × 7/24 × 7 = 567/168 - Add the two like fractions:
180/168 + 567/168 = 180 + 567/168 = 747/168 - 747/168 simplified gives 249/56
- So, 30/28 + 81/24 = 249/56
In mixed form: 425/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28+81/24 30/56+81/24 30/28+81/48 90/28+81/24 30/84+81/24 30/28+81/72